Lock.



I. CAPITAIN. LOOK.

APPLIOATION FILED JULY 24, 1912.

1,100,417. l PatenteaJune 16,1914

COLUMBIA PLANDGRAPM co..wASmNaTON. n. c.

JOHANN CAPITAIN, 0E coELENz, GER-MANY.

LOCK.

Speccation of Letters Patent.

Patented June 1 6, 1914:.

Application filed July 24, 1912. Serial No. 711,270.

To aZZ whom it may concern Be it known that I, JOHANN CAPITATN, merchant, a subject of the King of Prussia and German Emperor, residing at Coblenz, in the Kingdom of Prussia and German Empire, have invented certain new and useful Improvements in Locks, of which the following is a specification.

My invention relates to the known kinds of safety-locks, in which the bolt is secured in its position not by the tumbler alone, but also by a special resilient pin, which can be released or disengaged by a separate device attached to the key belonging to the safetylock. According to the present invention the arrangement is such that the disengagement can be effected by the said separate device attached to the key from both sides of the lock. To this effect the locking or arresting pin catching` into an opening of the bolt is connected by means of a lever to a second pin by which said locking or arresting pin can be disengaged or released from the opposite side of the lock.

Further, my invention relates to an arrangement according to which the bolt of the safety-lock is provided with a spring which closes or covers the bolt opening into which the locking or arresting pin is to catch, so as to prevent said locking or arresting pin engaging or penetrating again in said bolt opening, when said separate device attached to the key is taken out of the device serving to disengage the said locking or arresting pin.

Moreover, my invention relates to such an arrangement that the device used for disengaging the locking or arresting pin is directly connected to the key proper.

In the accompanying drawing forming a part of this specification and in which similar letters of reference relate to corresponding parts throughout the several views an embodiment of my invention is represented.

Figure l is a side view of the safety lock; Fig. 2 is a section on line A-A of Fig. 1; Fig. 3 is a section on line BdB of Fig. 1; Fig. 4 shows in a front and a side View the upper part of the key proper arranged according to my invention; Fig. 5 is a side view of the bolt.

Referring now to the Figs. 1, 2 and 5 the bolt a has an opening or notch ZJ and to said bolt a is fixed a spring c. Further, a locking or arresting pin OZ is slidable in a guide e attached to the casing i1, of the lock and in a socket g fixed to the panel f of the door. To a bracket z' secured to the casing of the lock a double-armed lever 7c Zz is pivoted upon a pin j, the one arm 7c of said lever engaging in a slot provided in the locking or arresting pin (Z, while the arm 7c engages in a slot of a pin Z guided in the casing of the safety-lock.

A spring m secured to the casing ZL of the lock acts upon the lever 7c 7c so that the locking or arresting pin (Z is pushed by said lever Zr: k into the recess or notch b of the bolt a as soon as said recess b is free. In its normal position the said spring c closes or covers with its outer free end said recess of the bolt a; while the spring c is moved sidewise on the bolt a being shifted in the direction of the arrow n of Fig. 1, by the action of the pin CZ, so that the free outer end of said spring o moves in the direction of the arrow 0 of Figs. 1 and 5, whereby the recess b of the bolt a is opened, so that the locking or arresting pin cZ can penetrate into said recess o of the bolt a. Both pins Z and Z have at their outer end a hole or bore provided with a female thread so that by screwing into said threaded hole or bore a correspending screw, said pins Z and Z can be pulled out a certain distance from either side of the lock.

Preferably the small screw corresponding to the threaded holes of the pins OZ and Z is connected with, or Xed to, the key g belonging to the safety-lock, as shown in Fig. 4, in which a threaded pin or screw p is pivoted to the ring of the key, so that said screw 22 can be turned toward the shank Q of the key g or away from the same.

The mode of operation of the safety-lock forming the object of the present invention is the following: By means of the key g the bolt a, in order to lock the door is in the usual manner moved in the direction of the arrow n (Fig. 1), whereby the spring c which rests against the pin al is moved in the direction of the arrow o (Figs. 1 and 5), so that the recess Z) of the bolt a becomes gradually free. As soon as the bolt a has been sufficiently moved, the locking or arresting pin @Z catches automatically into the bolt opening or recess Z9, whereby7 the safety of the lock 1s improved. The opening of the lock, z'. c., the withdrawal of the bolt on, is also effected by the key g. In order to render this possible, the locking or arresting pin d must first be pulled out the required distance out of the casing L by means of the screw p of the key g being screwed into the corresponding threaded hole at the outer extremity of the pin d or Z. Above the spring c is arranged a suitably bent plate r secured with its ends to the bolt ci, said plate 7' being intended to keep the spring c down in its proper position.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States is:

l. ln a safety-lock, the combination of a bolt adapted to be actuated by means of a key, a recess in said bolt, a locking-pin adapted to engage in said recess, said locking-pin being movable in the one side-Wall of the lock and provided at its inner end with a lateral recess, a second pin provided With a lateral recess at its outer extremity, said second pin being` slidably mounted in the other side-Wall of the lock, a ulcrumed lever adapted to engage with the one of its extremities in the recess of said locking-pin and with its other extremity in the recess of said seco-nd pin, resilient means fixed to said bolt and under the control of said locking pin for opening the recess of said bolt so as to permit said locking-pin to engage in the recess of said bolt, and for closing said recess When Said locking-pin is out of engagement with the recess of said bolt, and means attached to said key for withdrawing said locking-pin out of said recess from the one or the other side of the bolt respectively, substantially as described.

2. ln a safety-lock, the combination of a bolt adapted to be actuated by a key and having recess, a locking-pin guided in the casing on one side of the safety-lock and adapted to interlock with said recess, a spring' secured to the bolt, said spring being adapted, when the bolt is brought by said key into its locking position, to be shifted laterally by said locking- )in so as to open the recess of said bolt, an to close again saidrecess when the bolt is so moved as not to press upon said locking-pin, a second pin on the other side of the boltcasing, a double-armed lever fulcrumed to the casing and connecting said two pins, and a threaded recess in each pin, said recess being adapted to coact With a threaded pin to be screwed into either of said rccesses, so as to draw out the one or the other of said pins a certain distance and to release in this manner the locking-pin from the recess of the bolt, said threaded pin being attached to the key, substantially as described.

3. ln combination with a safety-lock having a bolt provided with a recess, a lockingpin adapted to engage in said recess, another pin positively connected with said locking-pin, a key adapted to act upon the bolt, and a threaded pin pivoted to the ring of said key, said threaded pin being adapted to be Scrcivcd into the one or the other or' corresponding threaded recesses provided in said two pins, substantially as described.

In testimony whereof, l' afiixed my signature in presence of two witnesses.

JOHANN CAPITATN.

Witnesses LoUrs VANnonY, Josnrrr STADTEN.

opies of this patent may be obtained for ve cents each, by addressing the Commissioner of latents.

Washington, D. C.

Cir 

